HSC Science (General) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions for Biology

Fill in the column 'B' with appropriate answer: 

(Capillary water, Combined water, Hygroscopic water, Gravitational water)

Water imbibed or adsorbed on soil particles.

Mating of two closely related individuals within the same breed is called ______.

(a) In-breeding

(b) Out-breeding

(c) Out-crossing

(d) Cross-breeding

Visit of a veterinary doctor to dairy farm is mandatory. Give reasons.

Give the economic importance of ‘fisheries’

Describe steady population with the help of a pyramid.

In____________ , superior males of one breed are mated with superior females of another breed.

1. out crossing
2. cross breeding
3. out breeding
4. inbreeding

Give 'two' varieties of silk which are considered  as inferior quality

Which method of conservation of biodiversity includes 'hotspot' method?

Justify the conservation of endangered species of plants and animals is necessary

Elephantiasis is caused by ________________.

Crippling disease is caused due to poisoning of ____________.

Mention any ‘two’ methods used to prevent spoilage of fish

Give economic importance of apiculture

Differentiate between Euchromatin and Heterochromatin.

Construct an age pyramid which reflects an expanding growth status of human population.

Humtilin is used to treat ____________.

Describe diagrammatic representation of age structure showing declining population.

The number of adenine molecules in a given DNA segment is 25 and the number of cytosine molecules is 45, the total number of nucleotides in the segment is _______________.

__________ is the infectious stage of Plasmodium.